I went to three running stores. One told me I overpronate just by looking at my stance and bending my knees. The next one said the same thing except it was severe overpronation. They had me walk about 15 feet and back. The third place had an electronic scanner that made a 3D image of my feet and asked me to walk about 16 feet. They said I was neutral! I am now of the opinion that they only way you can really know ifs to go to a podiatrist (a medical doctor specializing in the feet) and find out.